Install R14; Install The To-220 Regulators, Power Transistors And Heatsinks; Figure 4-Regulator And Heat Sink Assembly Detail - DYNACO PAT-5 Assembly Manual

Replacement power supply rev e hardware

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Designation Type

1N4004 400 PIV 1 Amp, 1N4004, rectifier diode

D10

1N4004 400 PIV 1 Amp, 1N4004, rectifier diode

D11

1N4004 400 PIV 1 Amp, 1N4004, rectifier diode

Install R14

Designation

Value

R14

330

There are three regulators and one power transistor in TO-220 packages. Each TO-220

device fastens to the PCB (printed circuit board) with a heat-sink, heat-sink compound, a

6-32x3/8" screw and 6-32 keps nut (a nut with a built-in lock washer). Figure 4 shows the

general assembly method. Note that there are two different size heat sinks, and one

device, U2, will get two heatsinks!

Diodes – watch the polarity!

Rating, Marking, Description

Color Code

330 Marked on the body

Page 8 of 18

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